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DisplayLenovo ThinkPad T420 4236WUH 
Screen Size14.00 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:9
Screen ModeWSXGA
Screen Resolution1600 x 900
Backlight TechnologyLED
Graphics Controller ManufacturernVIDIA
Graphics Memory CapacityUp to 1 GB
Graphics Memory AccessibilityDedicated
Hard DriveLenovo ThinkPad T420 4236WUH
Solid State Drive Capacity160 GB
Solid State Drive InterfaceSerial ATA/300
Optical Drive TypeDVD-Writer
MemoryLenovo ThinkPad T420 4236WUH
Memory Card SupportedSecure Digital (SD) Card, Secure Digital High Capacity (SDHC), Secure Digital Extended Capacity (SDXC), MultiMediaCard (MMC)
Standard Memory8 GB
Maximum Memory8 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1333/PC3-10600
Number of Total Memory Slots2
Memory Card ReaderYes
NetworkLenovo ThinkPad T420 4236WUH
Wireless LANYes
Wireless LAN ManufacturerIntel
Wireless LAN StandardIEEE 802.11 a/g/n
Ethernet TechnologyGigabit Ethernet
BluetoothYes
Bluetooth StandardBluetooth 3.0
DimensionsLenovo ThinkPad T420 4236WUH
Height1.2"
Width13.4"
Depth9.2"
Weight (Approximate)83.52 oz
ColorBlack
Detailed SpecsLenovo ThinkPad T420 4236WUH
WebcamYes
MicrophoneYes
SpeakersYes
ProcessorLenovo ThinkPad T420 4236WUH
Processor ManufacturerIntel
Processor TypeCore i7
Processor Modeli7-2620M
Processor Speed2.70 GHz
Processor CoreDual-core (2 Core)
Cache4 MB
Chipset ManufacturerIntel
Chipset ModelQM67 Express
SoftwareLenovo ThinkPad T420 4236WUH
Operating SystemWindows 7 Professional
Operating System Architecture32-bit
Input DevicesLenovo ThinkPad T420 4236WUH
Pointing Device TypeTouchPad, Trackpoint
TouchPad FeaturesMulti-touch Gesture
I/O ExpansionsLenovo ThinkPad T420 4236WUH
Expansion Slot TypeExpressCard/34
BatteryLenovo ThinkPad T420 4236WUH
Battery ChemistryLithium Ion (Li-Ion)
Maximum Battery Run Time15 Hour
InterfacesLenovo ThinkPad T420 4236WUH
Total Number of USB Ports4
Number of USB 2.0 Ports4
VGAYes
Audio Line OutYes
eSATA/USB ComboYes
DisplayPortYes